Throttle-valve.



W. A. DENEHIE. THROTTLE VALVE.

APPLICATION PILBD JULY 28, 1913.

1,106,633. Patented Aug.11,1914

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WILLIAM AUSTIN IDENIEI-IIE,` F L'OS ANGELES, CALIFORNIA, ASSIGNOR` 0F ONE- HALF T0 GEORGE L. COOPER, OF LOS ANGELES, CALIFORNIA.

TimoTrLE-varlvnl Speeication of Letters Patent. I Pmbgntd g, 1| jl 119141,

Application md July 2s, 191,3. serial No. 781,671.

T0 all 'whom it may concern Be it known that I, WILLIAM AUSTIN Demmin, a citizen of the United States. residing at Los An eles,'in the county of Los Angeles and State of California, have in vented anew and useful Throttle-Valve', of which the following is a specification.

My invention relates to valves and particularly to those adapted to be placed between an internal combustion engine and 'the carbureter therefor, such valves being com# monly provided for the purpose of controlling the supply of explosive mixture admitted to the engine.

The principal object of my invention is to provide a valve which will tend to further divide and mix any gases or vapors passing therethrough and which may be actuated to pass a varying amount of such mixtures.

Another object of my invention is to provide a valve having the above characteristics which will be of simple construction and which may be self closing.

Further objects and advantages will appear more fully in the following specification.

Referring to thedrawings, which are for illustrative purposes only: VFigure 1 shows one embodiment of my invention applied to an automobile. Fig. 2 shows a vertical cross section through the center of this formof my invention. F ig. 3 shows a plan view of the same form of my invention.

My invention is particularly applicablc to automobiles and -is shown in th drawings as applied to an automobile. In -these drawings 1 is a hood of. an automobile in which is placed an engine 2, which is provided with a manifold 3 into which the explosive mixture is admitted before being distributed byA the valves to the various cylinders. A valve 4 embodying my invention, as will hereinafter be explained, is placed open communication yvith this manifold 3 on one end and with a carbureter 5 on the other end.

6 is a forward portion of the floor of an automobile through which a throttle pedal .7 extends, this pedal being pivot-ed on a shaft 8 and connected by means of a pin 9 with a throttle rod 10, this throttle rod being connected to the throttle valve which. forms my invention, `as will hereinafter' be described. This throttle valve consists of a hollow cylinder 11, provided with flanges 12 and 13, these anges having bolt holes 14 arms 27.

and 15 f ormed therein. The flanges and bolt holes beingfor vthe purpose of attaching the valve to the manifold 3 and the carbureter 5, as will plainly be shown in Fig. 1, the bolts 16 and 17I being used for this purpose. An opening 18 of the hollow cylinder 11 is in open communication with the manifold 3' and an opening 19 is in open communication with the carburter 5. The hollow cylinder 11 1s provided with a bore extending from the opening 18'to the opening19, which bore has a shoulder 20 formed intermediate of its l length. The larger end of a conical helical spring 21. is sprung against the shoulder 20, being secured firmly therea-gainst by means of the nut 211 which is threaded into the in.- terior of the hollow cylinder 11 by means of the thread 22. When the nut 211 is firmly screwed into place, the spring 21 is securely and tlghtly seated againstthe shoulder 20. Thesmall end of the spring 21 is securely clamped to a rod 23 'by means of a conical nut 24 and a cupshaped nut 25, these .nuts being threaded upon the rod. 23 and tightly clamped against the spring 21. A eotter pin 26 is passed through a hole in the rod 23 outside the nut 25 to prevent the same from working loose and releasing the spring. The rod -23-passes through a bearing 260 which is formed integral with the nut 211 being connected thereto by means of two This rod extends upwardly through the bearing 260 and isl provided with a slot 28 at its upper end in which is placed a pair of rollers 29 and 30, these rollers turning o-npins 31 and 32 which pass through the rod 23. Y

A shaft 33 passes through bearings 34 and 35 formed on the body of the cylindrical member 11 and a lever 36 is secured by a set screw 37 to the shaft 33, this lever 36 being in a plane containing the axis of the cylindrical member 11. This lever 36 has an arm 38 which extends laterally lfrom the yshaft 33 and passes between the rollers 29 and 30, as shown in Fig. 2. Squared ends 39 and 40 are provided on each end of the shaft 33 and a collar 41 securedY by a set screw'42 iss'uppliedon the end 39 thereof. A lever 43 fastened by a set screw 44 is secured on Ithe squared end 40of the shaft 33. The

relative positions of thecollar 41 and the lever 43 may be readily changed to suit the different styles of automobile to which my device may be applied. The lever 43 is'pro- -vided with an upper poi-tion 45 and' a lower j tion.

portion 46, this lower portion carrying a screw 47 securcdby a nut 48, this screw being adapted to engage u lug' 49 formed on the outside of the cylinder member 11.- lA second lug 50 is provided on the opposite side of the cylindrical member 11, so that the lever 43 and the collar 41 may be interchauged if. itA is desired to do so. The upper cud 45 of the lever 43 is provided with a number of holesA 51 to which the rod 10 may be attached, the attachment point of the rods being so selected that there is a convenient movement of the pedal 7. l

The spring 21 1s formed o f stiff wire and is so wound that unless some external force is supplied to it, it will assume the osition shown in Fig. 2 with the vari-ous coi s thereof in close contact. In practice the set screw 47 is turned until it bears against the lug 49 and is secured by the nut 48 in this posi- The attachment of this screw in an intimate contact with the lug 49 results in turning the shaft 33 in a counter-clockwise direction due to such screw 47 moving the lower end 46 of the lever 43. This counterclockwise rotation of the shaft 33 forces the arm 38 downwardly, this arm pressino` downwardly upon the rollerl 30 and forclng the rod 23 downwardly. This downward movement of the rod 23 tends to open the'spring 21 and to lea-ve a series of small openings between the coilsk thereof.

The methodof operation of my invention is as follows: The set screw 47 is so adjusted that there isa small opening between the various coils 21, the total opening ltherethrough belng such that a sufficient quantity of'mixture passes in through'the opening 19 and out through the opening 18 to keep theengine running at a slow speed without load. This -is common practice on such throttle valves and prevents the engine from being suddenly stopped due to the pressure on the footpedal 7 .being relieved. Whenit is desired to admit more mixture to the engine 2the pedal 7 is pushed downwardly pivoting yabout the shaft 8 and pulling upon the pin 9 which is attached to the rod `10.v This rod being attached to the lever 43 rotates this leverin a clockwise direction, as shown in Fig. 1, or-in a counter-clockwise direction, as shownin Fig. 2. This moveforcs the rod 23 downwardly and farther opensthe coils ofthe spring 21. It will thus bel seen that this spring forms a convenicnt type of' valve which is self closing,

the tension oi'the spring being suilieient to Y insure such closing. It has, however, further ,advantages The openin between the coils of the spring 21 bem o very great length, a comparatively smal separation provides sutiicientA area for the passage'of the mixture therethrough. This mixture enters the opening 19 ina line approximately parallel to the axis of the cylindrical member 11 andv passes outl through the opening 18' in approximatelythe same direction.- kIt cannot,

however, pass through the openings between the coils without changing it-s direction, it being necessary to make practically a right angle turn when the spring is very nearly closed. The mixture which` is admitted through. the opening 19 from the carbureterA 5 is never even with the best forms of carbureters now obtainable a perfect mixture,

but consists of larger or smaller particles of liquid more or less irregularly distributed in a body of air. As these particles .of liquid strike upon and are blown 0H vfrom the coils of the spring 21, they are. further separated and mixed. The valve therefore has a very marked action as a further atomizer and mixer serving as an auxiliary earbureter in this respect. As the force and certainty of the explosions in a gasolene engine depend in a great measureon how perfeet this mixture is, this characteristic of my invention is a valuable one and one that is not in any way common to the common forms of valves now in use.

It is understood that my invention herein i disclosed is not limited toa valve for use upon agasoleneengine, but may be used for any fluid. 'g

II claim as my invent-ion:

In combination with a gasolene engine supplied with liquid fuel through a carbUreter, a valve comprising a body member having an opening through ,which saidliquid fuel may be passed, a helically wound conical spring. normally closing said opening, and means for extending sa1d spring so that the said liquid fuel may be drawn through the openings between the coils thereof and further mlxed' with air thereby.

Iii-testimony whereof, I have hereunto set my hand at Los Angeles, California, this 17th day of July, 1913. j

WILLIAM AUSTIN DENEHIE. In presence of FRANK L. A. GRAHAM, FRED .A. M ANsFmLD. 

